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Fifth wheel (toy hauler) · KZ factory figures · Single-Source Profile

2018 KZSidewinder 3610DK

A 38-foot fifth wheel (toy hauler) that KZ lists at 11,640 lb dry, with a 14,995 lb GVWR, for 2018.

Tow-Critical Data — as built, MY2018

11,640lb
Dry Weight
14,995lb
GVWR
2,430lb
Hitch Weight
38ft
Length
Fifth wheel (toy hauler) · KZ Built by · KZ RV Model year · 2018

01 What makes it unique

KZ lists the 2018 Sidewinder 3610DK at 11,640 lb dry, a GVWR of 14,995 lb, a net carrying capacity of 3,355 lb and a pin weight of 2,430 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.

It is 38' 11" long and 13' 4" high. KZ prints its tanks as 116 gal fresh, 57 gal grey, 57 gal black.

Among the 6 Sidewinder floorplans KZ’s Sidewinder brochure (filed in KZ’s 2018 brochure folder; the brochure prints no year) lists with a published dry weight, it is number 4 from the lightest, in a range from 10,470 lb (Sidewinder 3214DK) to 13,500 lb (Sidewinder 3914TK). Every figure in that comparison is KZ’s, for the same model year.

Every number on this page was read on 5 Nov 2026 from KZ’s Sidewinder brochure (filed in KZ’s 2018 brochure folder; the brochure prints no year); model year 2018 comes from where the maker files it on its own site, not from the document’s text.

How the 3610DK differs from the other five Sidewinder floorplans. Most distinctive first. How these ranks are worked out.

  • Cargo capacity, 3,355 lb: smallest of six; next is the 3914TK (3,500 lb).
  • Cargo capacity as a share of GVWR, 22.4%: second-smallest of six, between the 3914TK (20.6%) and the 3511DK (24.2%).
  • Pin weight, 2,430 lb: second-lightest of six, between the 3511DK (2,390 lb) and the 3914TK (2,600 lb).
  • Pin weight as a share of dry weight, 20.9%: second-smallest of six, between the 3914TK (19.3%) and the 3511DK (21%).
  • Dry weight, 11,640 lb: third-heaviest of six, between the 3511DK (11,370 lb) and the 3814DK (12,430 lb).
  • Length, 38 ft 11 in: third-longest of six, between the 3511DK (38 ft 4 in) and the 3814DK (41 ft 4 in).

Next to the 3511DK, the nearest lighter floorplan by dry weight, the 3610DK is 270 lb heavier by dry weight, has 270 lb less cargo capacity, has a pin weight 40 lb heavier, is 7 in longer and has a grey tank 40 gal smaller; the two publish the same GVWR, exterior height, interior height, fresh tank and black tank.

Next to the 3814DK, the nearest heavier floorplan by dry weight, the 3610DK is 790 lb lighter by dry weight, has a GVWR 2,005 lb lower, has 1,215 lb less cargo capacity, has a pin weight 190 lb lighter and is 2 ft 5 in shorter; the two publish the same exterior height, interior height, fresh tank, grey tank and black tank.

02 Full specifications

Dimensions

Exterior length
38' 11"
Exterior height
13' 4"
Exterior width
101"
Interior height
102"

Weights

Dry / unit base weight (UVW)
11,640 lb
GVWR (max loaded)
14,995 lb
Net cargo / payload (CCC)
3,355 lb
Hitch / pin weight
2,430 lb

Capacities

Fresh water
116 gal
Grey water
57 gal
Black water
57 gal

Running gear

Hitch type
Fifth wheel (pin box)
Tire size
16"

Sleeping & layout

Sleeps
Not published by KZ
Dry Axle Weight*
9,210
Refrigerator (cu. feet)
8
Water Heater Cap. (gal. G/E w/DSI)
12
1/2 Bath Cap. (gal.)
N/A
LP Gas Cap. (lbs.)
60
Furnace BTUs (1,000s)
35
Optional 2nd Awning
16'
Model year source
The brochure itself prints no model year; KZ files it under 2018 in its own brochure folder (kz-rv.com/brochures/2018/).
Awning
18'

How these published figures sit against the rest of the catalogue: fifth wheel pin weight and payload; fresh, grey and black tank sizes; camper trailer size chart.

Drawn to scale

Weight budget

Loaded weight budget for the Sidewinder 3610DKHorizontal bar. Dry weight 11,640 pounds, then cargo capacity 3,355 pounds, against a GVWR of 14,995 pounds. Pin weight 2,430 pounds on the same scale.GVWR 14,995 lbsDry 11,640 lbsCargo capacity 3,355 lbsPin weight 2,430 lbs — same scale

Size, with end view

Scale outline of the Sidewinder 3610DKScale outline of the Sidewinder 3610DK. Overall length 38' 11", overall height 13' 4", overall width 8' 5".end view8' 5"38' 11" overall length13' 4"

Holding tanks

Holding tank capacities for the Sidewinder 3610DKHolding tank capacities: fresh 116 gallons, grey 57 gallons, black 57 gallons.Fresh116 galGrey57 galBlack57 gal

Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.

Towing it

Tow rating needed14,995 lb
Published pin weight2,430 lb
Loaded pin weight, rule of thumb2,430–3,749 lb
In-bed fifth-wheel hitch rating needed14,995 lb towed / 3,749 lb pin
Payload check. Budget loaded, not dry: subtract the loaded range, every passenger and the bed and cab load from the payload on your tow vehicle’s door-pillar placard (49 CFR 571.110 S4.3).

Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.

Compares your figures with this page’s published GVWR (14,995 lb) and the upper loaded pin estimate (3,749 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.

Loaded range: 15–25% of GVWR on the pin, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433). The range starts at the published figure, because loaded is never lighter than that.

Check this floorplan against your own vehicle’s numbers

03 The Sidewinder floorplan family

KZ’s Sidewinder brochure (filed in KZ’s 2018 brochure folder; the brochure prints no year) lists 6 Sidewinder floorplans; every one with a printed weight has a page here.

FloorplanNominalSleepsNotable
Sidewinder 3214DK34' 11"—Profiled
Sidewinder 3517DK37' 11"—Profiled
Sidewinder 3511DK38' 4"—Profiled
Sidewinder 3610DK38' 11"—Profiled
Sidewinder 3814DK41' 4"—Profiled
Sidewinder 3914TK46' 6"—Profiled

KZ’s Sidewinder brochure (filed in KZ’s 2018 brochure folder; the brochure prints no year) lists 6 Sidewinder floorplans. Every one with a printed weight has a page here.

04 Notes on this floorplan

What KZ does not publish for the Sidewinder 3610DK

KZ prints no sleeping capacity for this model, so none is given. Nothing is filled from a sibling model, a different model year or a dealer listing.

Read the label on the trailer

Federal rules put a load-carrying label inside every RV trailer: its unloaded weight with full propane, its cargo carrying capacity and its GVWR (49 CFR 571.110 and 571.120). Those figures come from the trailer itself and govern the towing decision.

05 How it compares

Lighter
KZ Sidewinder 3511DK

11,370 lb dry and 14,995 lb GVWR, against this model’s 11,640 lb and 14,995 lb.

Heavier
KZ Sidewinder 3814DK

12,430 lb dry and 17,000 lb GVWR, against this model’s 11,640 lb and 14,995 lb.

06 Loading it for a trip

A full 116-gallon fresh tank is about 963 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 29% of the Sidewinder 3610DK’s 3,355 lb cargo capacity, leaving 2,392 lb. Across 6 Sidewinder floorplans the water share runs 21% to 29%, and this plan’s is the highest. Nearest on that share: Sidewinder 3914TK at 28%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).

07 Where this floorplan sits

Closest sibling: the Sidewinder 3517DK, nearest on the published figures. It differs on 4 of the 8 fields both publish (this plan first): length 38 ft 11 in vs 37 ft 11 in; dry weight 11,640 lb vs 10,780 lb; cargo capacity 3,355 lb vs 4,215 lb; hitch weight 2,430 lb vs 2,640 lb. They match on GVWR, fresh tank, grey tank and black tank.

Sidewinder plansThis planPosition, low to highRange
GVWR (lb)14,9951–4 of 614,995–17,000
Dry weight (lb)11,6404 of 610,470–13,500
Cargo capacity (lb)3,3551 of 63,355–4,570
Hitch weight (lb)2,4302 of 62,390–2,780
Length38 ft 11 in4 of 634 ft 11 in–46 ft 6 in
Grey tank (gal)571–5 of 657–97

Either side of it by GVWR: Sidewinder 3517DK matches it at 14,995 lb GVWR; Sidewinder 3814DK is 2,005 lb heavier (17,000 lb GVWR).

Nearest Sidewinder siblingsLengthSleepsDry (lb)GVWR (lb)CCC (lb)Hitch (lb)Fresh (gal)
Sidewinder 3610DK38 ft 11 in—11,64014,9953,3552,430116
Sidewinder 3517DK37 ft 11 in—10,78014,9954,2152,640116
Sidewinder 3914TK46 ft 6 in—13,50017,0003,5002,600116
Sidewinder 3511DK38 ft 4 in—11,37014,9953,6252,390116
Sidewinder 3814DK41 ft 4 in—12,43017,0004,5702,620116
Sidewinder 3214DK34 ft 11 in—10,47014,9954,5252,780116

All 6 Sidewinder floorplans: Sidewinder line hub.

Other lines, nearest by GVWRGVWR (lb)Dry (lb)SleepsLength
Sidewinder 3610DK14,99511,640—38 ft 11 in
Avenue 35RKS14,99511,450—36 ft 10 in
Model Z 281014,99511,894—34 ft 9 in
Eagle 357MDOK14,99513,0301041 ft 11 in
Reflection 350RDS14,99512,2504—
Ridgeway 38TBL14,99512,630642 ft 5 in
Brookstone 344FL15,00012,789—42 ft 2 in

Against the Sidewinder 3610DK: the Avenue 35RKS is 2 ft shorter; the Model Z 2810 is 4 ft shorter; the Eagle 357MDOK is 3 ft longer.

08 Common questions about the Sidewinder 3610DK

How much does the Sidewinder 3610DK weigh?

11,640 lb dry; 14,995 lb GVWR, the most it may weigh loaded.

How much can the Sidewinder 3610DK carry?

3,355 lb, 22% of its GVWR (median across 442 fifth wheels here: 19%). A full fresh tank uses 963 lb of it.

What is the pin weight of the Sidewinder 3610DK?

2,430 lb as published, 21% of the dry weight (median across 686 fifth wheels here: 19%).

What size tow vehicle does the Sidewinder 3610DK need?

A tow rating of at least 14,995 lb, plus payload for the loaded pin weight, passengers and cargo.

What are the tank capacities on the Sidewinder 3610DK?

Fresh 116, grey 57, black 57 gallons. Off hookups, the waste tanks fill first.

How long is the Sidewinder 3610DK?

38' 11" overall, tongue or pin box included.

From the figures above.

09 What this page publishes, and what it does not

12 of the 18 fields this catalogue tracks are published for the Sidewinder 3610DK. Not published: sleeps, slide count, axle count, refrigerator, air conditioning, tire size (a description is published, a size is not).

Sourcing rules: methodology.

11 NHTSA safety record

NHTSA holds 4 recall campaigns against the Sidewinder line (a recall and a complaint are not the same thing).

Recall coverage here is not complete, and complaints are owners’ unverified reports (how this record is built). Check a specific VIN at NHTSA before you buy. Full tables are on the Sidewinder line page.

Owner’s manuals

The maker’s own owner’s manual for each model year on this page, linked where the maker publishes it. Each link goes to the maker’s file, labelled as the maker labels it; a year with no manual of its own is not filled from another year.

Model yearManual
2018Venom & Sidewinder (PDF on www.kz-rv.com; the maker’s manual for this line)
2017Venom & Sidewinder (PDF on www.kz-rv.com; the maker’s manual for this line)

Earlier model years

The record at the top of this page is the 3610DK from 2018. The maker’s own documents for earlier model years also list the 3610DK, and that year is printed here: 2017. The figures change from year to year, so check the year on the trailer’s own label. A field a year’s brochure does not print reads “Not published” and is never filled from another year.

Model yearDry (UVW)GVWRCargo (CCC)Dry pinLengthSleeps
201711,64014,9953,3552,43038' 11"Not published

Full record for each earlier model year

2017 3610DK 11,640 lb dry · 14,995 lb GVWR

Dimensions

Exterior length
38' 11"
Exterior width
101"
Exterior height
13' 4"
Interior height
102"

Weights

Dry / unit base weight (UVW)
11,640 lbs
GVWR (max loaded)
14,995 lbs
Net cargo / payload (CCC)
3,355 lbs
Dry pin weight
2,430 lbs

Running gear

Tire size
16"
Hitch type
Fifth-wheel (in-bed)
Model year of record
2017

Capacities

Fresh water
112 gal
Grey water
57 gal
Black water
57 gal
Awning
16'

Sleeping

Sleeps
Not published

As printed in this brochure

Dry Axle Weight* (as printed)
9,210
Refrigerator (cu. feet) (as printed)
8
Water Heater Cap. (gal. LP w/DSI) (as printed)
12
LP Gas Cap. (lbs.) (as printed)
60
Furnace BTUs (1,000s) (as printed)
35
Optional 2nd Awning (as printed)
16'
UVW (Unloaded Vehicle Weight) footnote
Brochure footnote: "This weight reflects the rolling average unit weight for each model."
Dry Hitch Weight footnote
Brochure footnote: "This weight reflects the rolling average unit weight for each model."

Source for 2017. Printed in KZ RV’s Sidewinder brochure (www.kz-rv.com). The document itself prints no model year; KZ RV files it under 2017 in its own brochure folder. Dry weight plus cargo capacity equals the printed GVWR exactly (11,640 + 3,355 = 14,995 lb). Nothing in this record is copied from another model year.

NHTSA record for 2017 Sidewinder

2 recall campaigns filed with NHTSA name the Sidewinder for model year 2017:

No owner complaint filed with NHTSA names the Sidewinder for model year 2017. NHTSA files recalls and complaints by line and model year, not by floorplan, so a campaign listed here may not affect every Sidewinder floorplan; the recall notice says which units it covers.